X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FGeomAPI%2FGeomAPI_Edge.cpp;h=b5736f4b618d70b52ad2e8c786c8db1ba4d20ff6;hb=c65c7a084cf32f54c8d8a93fceace414c3b0fb21;hp=759b0b323cb2c90205d2fef862abfe9c3fbc9c97;hpb=5453faccbabc730f9816c502460cd3ec37ef5621;p=modules%2Fshaper.git

diff --git a/src/GeomAPI/GeomAPI_Edge.cpp b/src/GeomAPI/GeomAPI_Edge.cpp
index 759b0b323..b5736f4b6 100644
--- a/src/GeomAPI/GeomAPI_Edge.cpp
+++ b/src/GeomAPI/GeomAPI_Edge.cpp
@@ -8,6 +8,7 @@
 #include<GeomAPI_Pnt.h>
 #include<GeomAPI_Circ.h>
 #include<GeomAPI_Dir.h>
+#include<GeomAPI_Lin.h>
 
 #include <TopoDS_Shape.hxx>
 #include <TopoDS_Edge.hxx>
@@ -46,8 +47,12 @@ bool GeomAPI_Edge::isCircle() const
   const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
   double aFirst, aLast;
   Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
-  if (aCurve->IsKind(STANDARD_TYPE(Geom_Circle)) && aCurve->IsClosed())
-    return true;
+  if (aCurve->IsKind(STANDARD_TYPE(Geom_Circle)))
+  {
+    // Check the difference of first and last parameters to be equal to the curve period
+    if (Abs(aLast - aFirst - aCurve->Period()) < Precision::PConfusion())
+      return true;
+  }
   return false;
 }
 
@@ -56,8 +61,12 @@ bool GeomAPI_Edge::isArc() const
   const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
   double aFirst, aLast;
   Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
-  if (aCurve->IsKind(STANDARD_TYPE(Geom_Circle)) && !aCurve->IsClosed())
-    return true;
+  if (aCurve->IsKind(STANDARD_TYPE(Geom_Circle)))
+  {
+    // Check the difference of first and last parameters is not equal the curve period
+    if (Abs(aLast - aFirst - aCurve->Period()) >= Precision::PConfusion())
+      return true;
+  }
   return false;
 }
 
@@ -99,9 +108,31 @@ std::shared_ptr<GeomAPI_Circ> GeomAPI_Edge::circle()
   return std::shared_ptr<GeomAPI_Circ>(); // not circle
 }
 
+std::shared_ptr<GeomAPI_Lin> GeomAPI_Edge::line()
+{
+  const TopoDS_Shape& aShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
+  double aFirst, aLast;
+  Handle(Geom_Curve) aCurve = BRep_Tool::Curve((const TopoDS_Edge&)aShape, aFirst, aLast);
+  if (aCurve) {
+    Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aCurve);
+    if (aLine) {
+      gp_Pnt aStartPnt = aLine->Value(aFirst);
+      std::shared_ptr<GeomAPI_Pnt> aStart(
+          new GeomAPI_Pnt(aStartPnt.X(), aStartPnt.Y(), aStartPnt.Z()));
+      gp_Pnt aEndPnt = aLine->Value(aLast);
+      std::shared_ptr<GeomAPI_Pnt> aEnd(
+          new GeomAPI_Pnt(aEndPnt.X(), aEndPnt.Y(), aEndPnt.Z()));
+      return std::shared_ptr<GeomAPI_Lin>(new GeomAPI_Lin(aStart, aEnd));
+    }
+  }
+  return std::shared_ptr<GeomAPI_Lin>(); // not circle
+}
+
 
 bool GeomAPI_Edge::isEqual(const std::shared_ptr<GeomAPI_Shape> theEdge) const
 {
+  if (!theEdge.get() || ! theEdge->isEdge())
+    return false;
   const TopoDS_Shape& aMyShape = const_cast<GeomAPI_Edge*>(this)->impl<TopoDS_Shape>();
   const TopoDS_Shape& aInShape = theEdge->impl<TopoDS_Shape>();